Microwave irradiation in topological superconducting systems
ORAL
Abstract
Microwave spectroscopy is an important tool for probing and manipulating qubits and superconducting systems. It has been used to investigate the Andreev spectrum of topological Josephson Junction (JJ) systems1,2 and to implement qubit gates3 and readout4. With Majorana bound state (MBS) dynamics in topological superconductors a possible implementation of fault-tolerant qubits, it is important to understand exactly how MBS and light interact. Theoretical approaches include adaptations of the Jaynes-Cummings model, which captures orbital-to-orbital excitations in a spin- and momentum-agnostic manner, and free-electron-like models, which can describe spin- and momentum-conserving scattering processes yet may have difficulty capturing edge and finite-size effects and lack higher-order coupling terms coming from the discreteness of the lattice. We extend these models by deriving an effective interaction between Majorana modes and an external electromagnetic field, focusing on the effects of microwave irradiation on the MBS solutions appearing at the boundaries of topological superconducting chains.
1B. Pekerten, D. S. Brandão, B. Bussiere, D. Monroe, T. Zhou, J. E. Han, J. Shabani, A. Matios-Abiague, I. Žutić, "Beyond the standard model of topological Josephson junctions: From crystalline anisotropy to finite-size and diode effects," Appl. Phys. Lett. 124, 252602 (2024)
2B. Heiba Elfeky, K. Dindial, D. S. Brandão, B. Pekerten, J. Lee, W. M. Strickland, P. J. Strohbeen, A. Danilenko, L. Baker, M. Mikalsen, W. Schiela, Z. Liang, J. Issokson, I. Levi, I. Žutić, J. Shabani, "Microwave Andreev bound state spectroscopy in a semiconductor-based Planar Josephson junction," Phys. Rev. Res. 7, 013248 (2025)
3C. Rigetti, M. Devoret, "Fully microwave-tunable universal gates in superconducting qubits with linear couplings and fixed transition frequencies," Phys. Rev. B 81, 13450 (2010)
4J. C. Bardin, D. H. Slichter, D. J. Reilly, "Microwaves in quantum computing", IEEE J. Microw. 1, 1 (2020)
1B. Pekerten, D. S. Brandão, B. Bussiere, D. Monroe, T. Zhou, J. E. Han, J. Shabani, A. Matios-Abiague, I. Žutić, "Beyond the standard model of topological Josephson junctions: From crystalline anisotropy to finite-size and diode effects," Appl. Phys. Lett. 124, 252602 (2024)
2B. Heiba Elfeky, K. Dindial, D. S. Brandão, B. Pekerten, J. Lee, W. M. Strickland, P. J. Strohbeen, A. Danilenko, L. Baker, M. Mikalsen, W. Schiela, Z. Liang, J. Issokson, I. Levi, I. Žutić, J. Shabani, "Microwave Andreev bound state spectroscopy in a semiconductor-based Planar Josephson junction," Phys. Rev. Res. 7, 013248 (2025)
3C. Rigetti, M. Devoret, "Fully microwave-tunable universal gates in superconducting qubits with linear couplings and fixed transition frequencies," Phys. Rev. B 81, 13450 (2010)
4J. C. Bardin, D. H. Slichter, D. J. Reilly, "Microwaves in quantum computing", IEEE J. Microw. 1, 1 (2020)
*MURI N000142212764
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Publication: B. Bussiere, D. Brandão, B. Pekerten, J. E. Han, J. Marino, I. Žutić, "Kitaev chain under driving by classical electromagnetic field" (planned paper)
B. Bussiere, D. Brandão, B. Pekerten, J. E. Han, J. Marino, I. Žutić, "Kitaev chain under driving by classical electromagnetic field: Beyond the non-dispersive limit" (planned paper)
Presenters
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Bailey Bussiere
- University at Buffalo